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Home >> Chrysler >> 1981 >> Imperial >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Thermostatic Air Cleaners -- All Models >> Testing >> Vacuum Control Temperature Sensor Test >> American Motors Models

American Motors Models

  1. Disconnect vacuum hoses from sensor. Connect suitable vacuum pump and gauge to sensor. Make sure sensor temperature is below 40°F.
  2. Apply 14 in. Hg to sensor. With sensor temperature below 40°F, vacuum should be maintained. Heat sensor to above 55°F. Air bleed valve should open and vacuum should decrease to zero. Replace switch if defective.
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